20161578563

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{691}}^1\times {\mathrm{20533}}^1$

素因数の和:21267

約数の個数: 24

約数和(自身を含む): 24298292880

約数和(自身を除く): 4136714317

約数列:

[1, 7, 29, 49, 203, 691, 1421, 4837, 20039, 20533, 33859, 140273, 143731, 595457, 981911, 1006117, 4168199, 14188303, 29177393, 99318121, 411460787, 695226847, 2880225509, 20161578563]

約数ペア:

[(1, 20161578563), (7, 2880225509), (29, 695226847), (49, 411460787), (203, 99318121), (691, 29177393), (1421, 14188303), (4837, 4168199), (20039, 1006117), (20533, 981911), (33859, 595457), (140273, 143731)]